I'm not sure about that... multiple reps with heavy weights are the definition of HIIT.

I know it's not the same think, that's why I said "HIIT and big muscles" because the goal might not be the same.

Of course doing HIIT on the bike or running is not bodybuilding, but it WILL grow your muscles (at least if you don't starve your body) more than strict endurance at lower effort.